19613456

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{8819}}^1$

素因数の和:8966

約数の個数: 20

約数和(自身を含む): 38278800

約数和(自身を除く): 18665344

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 8819, 17638, 35276, 70552, 141104, 1225841, 2451682, 4903364, 9806728, 19613456]

約数ペア:

[(1, 19613456), (2, 9806728), (4, 4903364), (8, 2451682), (16, 1225841), (139, 141104), (278, 70552), (556, 35276), (1112, 17638), (2224, 8819)]